This message is from: Marsha Jo Hannah <[EMAIL PROTECTED]> > "Jean Gayle" <[EMAIL PROTECTED]> wrote: > > If the Taki Aka Prze has different chromosomes than the horse is it in the > same line as the Zebra?
Nope. Zebras have radically different numbers of chromosomes. One of the benefits of being an electronic packrat is that my disk retains all sorts of tidbits. Posted on rec.equestrian many years ago: : From "The Horse", multiple authors, ISBN 0-7167-0491-9 : : Table 14-1: : : Scientific name Common name or names Diploid# of Chromosomes : -------------------------------------------------------------------------- : Equus caballus, przewalskii Przewalski's horse 66 : : Equus caballus Horse 64 : : Equus asinus Donkey, ass 62 : : Equus hemionus Onager, kiang, 56 : Asiatic wild ass : : Equus grevyi Grevy's zebra 46 : : Equus burchelli Burchell's zebra, 44 : Damara zebra, : Chapman's zebra : Grant's zebra : Boehm's zebra : : Equus zebra Mountain zebra, 32 : true zebra, : Hartmann's zebra The odd thing about Przewalski's horse is that, when they are bred to "regular horses", the offspring are fertile. Apparently their 66 chromosomes have a group of 62 that are very similar to the same ones in horses, while the other 4 are "broken in half" versions of horses' other 2 chromosomes. This would indicate that they were, until fairly recently (in geologic terms!), the same species, but that Przewalski's horse "spun off" somewhere along the line. Anyway, they're not closely related to modern Fjords, or any other equine. Marsha Jo Hannah Murphy must have been a horseman-- [EMAIL PROTECTED] anything that can go wrong, will! 15 mi SW of Roseburg, Oregon
